Shuttle-box motion for looms.



No. 820,018. rATENTBD MAY s, 1900` RH.- RYON.

SHUTTLE BUXMOTIN FOR LOOMS APPLICATION HLED MAY s, 1905.

z SHEETS-SHEET 1.

ai" f t PATENTED MAY s, 1906.

E. H. RYON.

SHUTTLE BOX MOTION FOR LOOMS.

APPLICATION FILED MAY 8, 1905.

UETTED sTATEs PATENT oEEIcE.

EPPA H. RYON, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO OROMPTON &KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

Specification of Letters Patent.

ratenteu May 8, 1906.

Application filed May 8,1905. Serial No. 259,296.

My invention relates t shuttle-box-mo` tion for looms in which two ormore change or drop shuttle boxes are used on one or both ends of theloom; and my invention particularly relates to mechanism for operatingthe shuttle-boxes and to a give-Way mechanism connected to thevertically-moving shuttlebox rod carrying the shuttle-boxes and to abalance-spring for the shuttle-boxes.

The object of my invention is to improve upon the shuttle-box-operatingmechanism as ordinarily made and the give-way mechanism connected withthe shuttle-boxes, and the balance-spring mechanism.

My invention consists in certain novel features of construction of myimprovements, as Will be hereinafter fully described.

I have only shown in the drawings detached parts of a shuttle-box motionat-one end of the loom embodying my im rovements, sufficient to enablethose skille in the art to understand the construction and operationthereof.

Referring the drawings, Figure 1 is a rear view of a box motion at oneend of a loom embodying my improvements looking in the direction ofarrow a, Fig. 2. Fig. 2 is a section on line 2 2, Fig. 1', looking inthe direction .of arrow b, Fig. 1. Fig. 3 is a detached view of thecompound box-levers and the give-way mechanism. Fig. 4 is a rear view ofthe give-way mechanism and the shuttlebox rod looking in the directionof arrow a, Fig. 2. The shuttle-box rod is shown in section. Fig. 5shows the parts of the give-way mechanism shown in Fig. 3 in their openposition and the lower end of one part in section. Fig. 6 is a sectionon line 6 6, Fig. 3, looking in the direction of arrow c, same figure.Fig. 7 shows, on an enlarged scale, the pivot-bearing hub portion of abox-lever detached. Fig. 8 is a section on line 8 8, Fig. 7, looking inthe direction of arrow d, same figure. Fig. 9 is a side view of theremovl able bearing detached; and Fig. 10 is an end view of the bearingshown in Fig. 9 looking inthe direction of arrow e, same figure. Figs. 3to 10, inclusive, are shown on an enlarged scale.

In the accompanying drawings, 1 is the loom-frame, 2 is the crank-shaft,3 the crankconnector to the lay-sword 4, which is pivotally mounted atits lower end in the usual way. The Ray-sword 4 carries one end of thelay-beam 5 and hand-rail 6 and also carries the shuttle-box stand orframe 7 for the vertically-moving shuttle-boxes S-in this instance fourin number.

To the loom-frame 1 are secured the archstands 9 for supporting thehead-frame 10, carrying the well-known Knowles head motion, (shown anddescribed in United States Reissue Letters Patent No. 7,784,) whichcomprises the pattern surface or chain 11, mounted on thepattern-cylinder 12, over Which extends indicator-levers 13, pivoted onthe head-frame 10, and each carrying a vibrator gear or crank 14, whichis moved into engagement with the lower cylindergear or the uppercylinder-gear, (not shown,) all in the usual and well-known way. To eachvibrator-gear 14 is attached -a vibrator-connector in this instance twoconnectors 16 on one end of the loom and two connectors 16', extendingacross the loom to the opposite end thereof.

All of the above parts may and well-known construction.

I will now describe my improvements. Each of the two vibrator-connectors16 is vconnected with the upper end of a lever 17, pivoted on a stud 18,securedy to the stand 9. Each lever 17 is connected at its lower end,through an adjustable link 19, with a gearsegment 20 and 20a,respectively, which are pivotally mounted on a stud 21. One gearsegment,as 20, meshes with a bevel-gear 22, fast on a shaft 23, mounted on astand 24, secured to the loom-frame. To the shaft 23 is fast a crank-arm25, carrying a crank-pin 25', to which is pivotally attached the upperend of a connector 26. The lower end of the connector 26 is pivotallyattached to one end of the box-lever 27, which is pivotally mounted on astud 28 on the end of a second lever 29. The opposite end of the lever27 is pivotally be of the usual IOO connected with the lower end of thegiveway mechanism 30. (See Fig. 3.) The gear-segment 20a meshes with abevel-gear 22a, fast on a sleeve 23a, mounted on the shaft23. arm 25a,carrying the crank-pin 25a. To the crank-pin'25a is attached the upperend of a connector 26a. I The lower end of the connector 26a ispivotally connected to one end of the lever 29, centrally pivoted on astud 29', carried on a frame or stand 29, secured to the outer side andlower part of the loom-frame 1 and carrying in this instance a rod 2 9,with guide-sheaves 29 mounted thereon.

I will now describe the give-way mechanism and the shuttle-box balance-spring. The giveway mechanism 30 comprises the two arms 30 and 30,which are pivotally connected at their upper ends bya pin 3 1. (See Fig.3.) The lower end of one arm,l as 30, is pivotally connected to thefront end of the lever 27, as above described, and also has two sideextensions 30 thereon, between which extends a side extension 30 o n thearm 30', which side extension has a bevel-shaped forwardly-extendingengagin end adapted to be engaged by the foot o the weaver. A coiledexpansion-spring 32 is in this instance inclosed within a centralopening 3 2 in the extension 30 (see Fig. 6) and is supported at one endin a recess at one end of saidl opening 32 (see Fig.r 5) and'bears atits other end against the part 30, which extends through said opening32. (See Fig. 6.) The spring 32 acts to move the yengaging end of theside extension 30 on the arm 30 outwardly to hold the two arms 30 and 30in their normal closed position, as shown in Fig. 3. The two arms 30 and30 each have a circular recess 3O"L on their inner edge in the usual wayto receive in this instance a collar or bushing 33, mounted on a stud34, which extends out from and is secured to a collar 35, fast on thevertically-moving box-rod 36. rIhe vertically-moving box-rod 36 in thisinstance is made tubuilar or hollow and is secured at its upper end tothe lower part 8 of the shuttle-boxes 8. Extending within the tubularrod 36is a spiral expansion-spring 3.7, the upper end of which in thisinstance bears against a stud 8, extending down from the boxes 8j withinthe tubular rod 36. The lower end of the spring 37 bears against theupper end of a vertically-'extending rod 39, which extends looselywithin the lower end ofthe tubular rod 36. (See Fig 4.) The lower end ofthe rod 39 is fastened to the rocker-iron 39. The spring 3,7 acts tobalance the weight of the shuttle-boxes 8, and being in closed withinthe box-rod 3 6 is concealed and out of the way, By means of theGXCGIlSOn 30 on the arm 30 of the giveway mechanism the weaver with hisfoot can move the part 30 to separate it from the Fast on the sleeve 23ais a crankpart 30, as shown in Fig. 5, and allow the shuttle-boxes to beraised or lowered by hand,

I will now describe the construction of the bearing for the pivot-studsof box-levers. In this instance each lever 27 and 29 has a hub portion27*l and 29a, respectively, which is recessed to receive the detachablebearing 40 for the pivot-studs 28 and 29. An adjusting screw or bolt 41extends through a threaded hole in the lower partof each hub and bearsat its inner end against the lower surface of the bearing-piece 10. Thebearing-piece 40 has projections 40 on its opposite external edges, andin case it is desired by reason of wear on the bearing to make thebearing closer or tighter on the sup orting pivot-l studs it is onlynecessary to Ile off slightly the upper ends of the projections 40.

It will be understood that the details of construction of myimprovements may be varied, if desired, and they may be applied to anyshuttle-box motion.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a shuttle-box mechanism of a loom, the combination with thecylinder-gear, the vibrator-gear, and the box-lever, of intermediateconnections, comprising a vibratorconnector, a pivoted lever connectedtherewith, a link connected with said lever, a ivoted gear-segmentconnected with said link, a bevel-gear meshing with said gear-segment, arotory shaft or sleeve carrying said bevelgear, a crank connected withsaid shaft or sleeve, and a connector therefrom to the boxlever.

2. In a shuttle-box mechanism of a loom, the combination with thecylinder-gear, the vibrator-gear, and the box-lever, of intermediateconnections, comprising a vibrator-connector, a pivoted lever connectedtherewith, an adjustable link connected with said lever, a pivotedgear-segment connected with said link, a bevel-gear meshing with saidgear-segment, a rotary shaft or sleeve carrying said bevel-gear, a crankconnected with said shaft or sleeve, and a connector therefrom to thebox-lever.

3. In a shuttle-box mechanism of a loom, a give-way mechanism for theshuttle-box rod, comprising two arms pivoted together and yieldinglyheld together, and one of said arms having an extension thereon adaptedrto be engaged by the foot of the weaver, to

move apart the arms and release the shuttlebox rod.

4. In a shuttle-box mechanism of a loom, the combination with theshuttle-boxes, and a tubular vertically-movmg rod connected therewith,of an expansion-spring extending within said tubular' rod, and having abearing at its upper end, and a bearing at its lower end against theupper end of a second IOC IIO

ISO

rod, and said second rod secured at its lower end, and extending looselyWithin the lower end of the tubular rod.

5. In a shuttle-box mechanism of a loom, the combination with avertically-'moving shuttle-box rod, ,of a shuttle-box lever, oonneotedwith said shuttle-box rod, and having an opening therethrough for aremovable bearing Jfor the pivot-support of said lever, and saidbearing, and an adjusting bolt or set-soreW turning in a threaded holein said lever, and enga ing said bearing.

6. In a shuttle-box mechanism of a loom, the combination With avertically-moving shuttle-box rod, of a shuttle-box lever, pivotallyconnected With said shuttle-box rod, and having an opening therethroughfor a removable bearing, and said bearing, having projections thereonwhich may be reduced in oase of looseness of the bearing,l and anadjusting bolt or set-screw turning in a threaded hole in said lever,and adapted to engage and adjust said bearing.

EPPA H. RYoN.

